You can search for identifiers within the package.
in-package search v0.2.0
type 'a t = 'a array * int array
val make : 'a array array -> 'a t
val read : 'a t -> int -> int -> 'a
val write : 'a t -> int -> int -> 'a -> unit
val length : 'a t -> int
val row_length : 'a t -> int -> int
val read_row : 'a t -> int -> 'a list
val row_length_via : (int -> int) -> int -> int
val read_via : (int -> 'a) -> (int -> int) -> int -> int -> 'a
val read_row_via : (int -> 'a) -> (int -> int) -> int -> 'a list